HP 5064-0778 - Power supply assembly - Switch selectable 100-127VAC or 200-240VAC input, 50-60Hz - 200 watts Retail
HP D8520-63001 - Redundant hot swap power supply - Autoranging 100-240VAC input, 350 watts - Located in the back of the chassis Retail
HP P2521-69017 - Hot-swap redundant power supply - 100-240V autoranging, 50/60Hz, 425Watt-max output Retail